KR101210056B1 - Liquid cleansing compositions - Google Patents

Abstract

Novel cleaning compositions and methods for their preparation are described. Preferred embodiments provide compositions containing acrylate copolymers, alkoxylated methyl glucoside polyols, and surfactants. Of these, preferred alkoxylated methyl glucoside polyols useful in the present invention may include ethoxylated and / or propoxylated methyl glucoside polyols.

Cleaning compositions, alkoxylated methyl glucoside polyols, surfactants, acrylate copolymers, neutralizing agents

Description

Liquid cleaning composition {LIQUID CLEANSING COMPOSITIONS}

Cross reference of related application

This application claims the priority of US Provisional Application No. 60 / 589,304, filed Jul. 20, 2004, which is incorporated herein by reference in its entirety.

Cleaning compositions containing various surfactants and structuring agents such as, for example, acrylate copolymers are described (e.g., US Pat. No. 6,635,702 B1, US Pat. No. 6,642,198). It has been found that use in combination with acrylate copolymers does not always provide the desired properties, such as sufficient foaming. The acrylate copolymers in the cleaning system can inhibit foaming when used with typical surfactants such as sodium laureth sulfate and cocamidopropyl betain.

Summary of the Invention

The present invention relates, in part, to novel cleaning compositions and methods for their preparation. Specifically, in certain embodiments, compositions are provided that contain an acrylate copolymer, an alkoxylated methyl glucoside polyol, and a surfactant. Another embodiment of the present invention relates to a method of preparing a cleaning composition.

DETAILED DESCRIPTION OF THE INVENTION

In certain embodiments, the present invention is a cleaning composition that is a structured liquid that provides the ability to suspend viscosity / rheological profiles and other additives for improved foaming, excellent skin feel, and / or dispensing. It is about. In certain embodiments, the composition of the present invention is a non-emulsion liquid cleaning composition.

In certain embodiments, the present invention relates to a cleaning composition containing at least one alkoxylated methyl glucoside polyol and at least one acrylate copolymer. Preferably, methyl glucoside is alkoxylated with ethylene oxide or propylene oxide.

According to one embodiment of the invention, there is provided a composition containing an alkoxylated methyl glucoside polyol, an acrylate copolymer and at least one surfactant. In certain embodiments of the invention, the surfactant includes an anionic surfactant. In certain embodiments of the invention, the surfactant includes an amphoteric surfactant. In certain embodiments of the invention, the composition contains both anionic surfactants and cationic surfactants.

In certain embodiments of the invention, the anionic surfactant is preferably in an amount from about 3% to about 25% by weight of the total composition, from about 5% to about 18%, or from about 7% to about 12% by weight. It is present in an amount by weight (all of the weight of the total composition).

In certain embodiments of the invention, the amphoteric surfactant is preferably in an amount from about 0.05% to about 15% by weight, from about 0.5% to about 10%, or from about 1% to about 8% by weight of the total composition. It is present in an amount by weight (all of the weight of the total composition).

In certain embodiments of the invention, the acrylate copolymer is preferably in an amount from about 0.1% to about 12% by weight, from about 0.5% to about 8%, or from about 1% to about 5% by weight of the total composition. It is present in an amount by weight (all of the weight of the total composition).

In certain embodiments of the invention, the alkoxylated methyl glucoside polyol is preferably in an amount from about 0.05% to about 6% by weight of the total composition, from about 0.1% to about 4%, or from about 0.2% to Present in an amount of about 2% by weight (all relative to the weight of the total composition).

In certain embodiments, the alkoxylated methyl glucoside polyol is methyl glucoside alkoxylated with ethylene oxide or propylene oxide. In certain embodiments, a mixture of ethoxylated glucoside polyols and propoxylated glucoside polyols may be used. Preferably the ethoxylated methyl glucoside and / or propoxylated methyl glucoside is in an amount from about 0.05% to about 6% by weight of the total composition, from about 0.1% to about 4%, or from about 0.2% to Present in an amount of about 2% by weight (all relative to the weight of the total composition).

In certain embodiments, the basic neutralizing agent is preferably in an amount from about 0.01% to about 5% by weight of the total composition, from about 0.05% to about 4%, or from about 0.1% to about 3% by weight (all total) The weight of the composition).

In certain embodiments, the compositions of the present invention additionally contain water. The amount of water can vary but can be up to about 99% by weight of the total composition, such as from about 35% to about 97%, or from about 50% to about 90% by weight (both relative to the weight of the total composition) Can be.

In certain embodiments, the composition may contain an effective amount of optional ingredients, including but not limited to the following ingredients: colorants, fragrances, antimicrobials, preservatives, antioxidants, beads, mica, glitters ), Opacifiers, and polishes. In certain embodiments, the beads may contain fragrances, exfoliating ingredients, and / or moisturizing ingredients.

According to one preferred embodiment of the invention, the composition contains beads containing shea butter. Preferably, the beads have a diameter in the range of about 100 to about 1200 microns.

In certain embodiments, the preferred pH of the composition is at least about 5.5, such as from about 6.0 to about 7.5, or from about 6.4 to about 7.2.

Suitable alkoxylated methyl glucoside polyols for use in the present invention include, but are not limited to, those having an average degree of alkoxylation of from about 8 to about 22. Suitable alkoxylated methyl glucoside polyols include, but are not limited to, ethoxylated methyl glucoside and propoxylated methyl glucoside. Examples include, but are not limited to, methyl gluceth-10, methyl glutet-20, PPG-10 methyl glucose ether, and PPG-20 methyl glucose ether.

Examples of suitable anionic surfactants include alkyl sulfates, ethoxylated alkyl sulfates, alkyl sulfonates, alkyl olefin sulfonates, alkyl succinates, alkyl sulfosuccinates, alkyl ethoxy sulfosuccinates, acyl and alkyl glutamate, alkyl phosphates , Alkyl ether carboxylates, alkyl isethionates, and acyl amides, but are not limited to these.

Suitable amphoteric surfactants include, but are not limited to, betaine surfactants. Examples of suitable amphoteric surfactants include, but are not limited to, alkyl betaines, alkylamido betaines, alkyl sulfobetaines, alkyl sulfines, and alkylamido sulfines. Preferably, the alkyl and acyl groups generally contain about 8 to about 18 carbons.

Suitable acrylate copolymers include the acrylate copolymers described in US Pat. No. 6,635,702 B1, which is incorporated herein by reference;

(a) at least one monomer or copolymer in a mixture of methacrylic acid, acrylic acid, itaconic acid, esters of the foregoing chemicals and any of the foregoing chemicals;

(b) in a group consisting of members of group (a) copolymerized with at least one member selected from the group consisting of Steareeth-20, Steares-50, Ceteth-20 Selected acrylate copolymers include, but are not limited to.

Examples of suitable acrylate copolymers include the trade name CARBOPOL® under Noveon (Cleveland, Ohio). AQUA SF-1, an acrylate copolymer sold under the tradename SYNTHALEN® W2000 at 3V (Wehawkin, NJ), ACULYN®22 and ACULYN®33, available from International Specialty Products Corotion (Wayne, NJ) However, it is not limited thereto.

Suitable alkaline neutralizers include, but are not limited to, inorganic neutralizers and organic neutralizers selected from the group consisting of alkali hydroxides (eg, ammonium, sodium, and potassium) and alkanolamines (eg, triethanolamine, isopropanolamine). Preferably sodium hydroxide or triethanolamine.

In certain embodiments, the compositions of the present invention may optionally contain an opaque and / or suspending agent, including but not limited to the following chemicals: ethylene glycol distearate, ethylene glycol Glycol stearate and glycol distearate, including but not limited to monostearate and polyethylene glycol distearate; Coated mica, glitters and mixtures thereof.

The compositions according to the invention can be prepared using conventional mixing techniques for mixing ingredients, known to those skilled in the art.

The invention is further illustrated in the following examples. The examples are for the purpose of illustration and are not intended to limit the scope of the invention. In this embodiment, as in other places in the present application, the values of n, m and the like in the formula, molecular weight and degree of ethoxylation or propoxylation are average values. Unless otherwise stated, the temperature is ° C. The amount of components can be weight percent based on the described standards; If no other standard is stated, the total weight of the composition is inferred (activity basis). Various names of chemical ingredients include those listed in the CTFA International Cosmetic Ingredient Dictionary (Cosmetics, Toiletry and Fragrance Association, Inc., 7th ed. 1997).

General method of preparing the composition

Using the forms and amounts listed in the examples, the product was prepared at room temperature (approximately 20-25 ° C.) by adding DMDM hydantoin to water in a vessel equipped with a central turbine stirrer. Thereafter, the acrylate copolymer was added to the aqueous phase and mixed. Sodium laureth sulfate was added to the mixture, which was then neutralized with sodium hydroxide at 25 ° C. in the pH 6.5-7.5 range. The other ingredients were added in order and mixed until uniform. Thereafter, cocamidopropyl bentain was added and mixed. Citric acid was added to adjust the pH to 6.4-7.2. The viscosity was adjusted to approximately 4300 centipoise (cps) by the addition of sodium chloride, where the blend viscosity ranged from 2500-5500 cps as measured by a Brookfield DV II + viscometer using spindle # 5 at 25 ° C. 20 RPM.

Example  One

Example  2

Example  3

Example  4

Rheology test

Rheology of the cleaning liquid is a very important concept in the consumer's perception of consistency and ejectability. Consumers conduct flow tests when using the product. How the product flows out of the bottle and how it is discharged, how it is pumped and discharged, and how much foam is produced when spreading the product in use are all examples of shear forces to be applied.

A series of rheological measurements were performed, including strain sweep and creep test. All rheological measurements were performed using a Paar Physica MCR300 flowmeter equipped with a TEK150P-CF Peltier plate, 50 mm parallel plate (PP50) and 1 mm gap at 23 ° C.

Strain sweeps are used to define linear viscoelastic (LVE) regions and determine the magnitudes of the G '(elastic modulus) and G "(viscosity) of unprocessed members and determine tan (delta), or G" / G' Represented by If tan is greater than 1.0, the member is viscous dominant; if tan (delta) is less than 1.0, the subtitle is elastic dominant. Creep test is a measure of the relative contribution of elastic and viscous elements.

Rheological measurements indicated that liquid hand soap containing glucam had high elasticity, low tan (delta) and low G ". The higher the G" value or the tan (delta) value, the higher the product. Is more viscous, ie consistent with the texture assessment and is not preferred.

Example  5

Sensor Board-Hand Wash Ejectability  Research

In order to evaluate the cosmetic properties, the composition of Example 1 was compared with the composition of Example 2 on the basis of cosmetic criteria for foam and discharge from liquid hand soap containers.

methodology:

product:

Glossy Liquid Soap Containing Glucam (Control)-Example 1

Glossy Liquid Soap Free without Glucam-Example 2

step:

Two products were tested in the following two phases: sequential unary hand washing step and side-by-side discharging step.

Part 1-Hand Wash Evaluation : Each test participant was washed with each product during two trials. The test participants discharged the product as usual, then washed the hands with the product (in water at a temperature of about 37 ° C ± 1 ° C) and evaluated the product. The test participants evaluated all products presented in either order or randomly. The test participants responded to a series of questions about product discharge characteristics and hand wash characteristics.

Part 2- Dispensing Assessment : Upon completion of the Hand Wash Study section, participants evaluated the discharge characteristics of both products (presented randomly). The test participants evaluated the discharge characteristics by pumping each product twice in a dish. The test participants were instructed to pump in the way they normally pumped, waited to recover (count 10), and then pumped the product again. This procedure was repeated for each product. The test participants answered a series of questions about the discharge characteristics between each product.

subject:

79 liquid hand soap users participated in this study.

Glucam  Gloss liquid With hand soap Glucam Free  Glossy liquid Hand soap  Comparison result

Part I: Hand Wash and Discharge (see Table 6)

Glucam Free Glossy Liquid Soap was found to be less foamed than Glucam containing Glossy Liquid Soap.

Part II : Dispensing Sole (see Table 5)

Glucam Free Glossy Liquid Soap was found to be more viscous at the time of dispensing compared to Glucam containing Glossy Liquid Soap.

Example  6

Foam Evaluation Test-Cylinder Vibration Test

Mechanical foam vibration method was used to evaluate the foaming properties of liquid soap products. The process used a Gaum Foam Machine commercially available from hard water, synthetic Fiji and Gaum, Inc. of Robbinsville, NJ.

Preparation of Hard Water : 40 g of magnesium chloride and 45 g of calcium chloride were mixed in a 2000 ml volumetric flask and deionized water was charged to the volume line. This yielded a 25,000 ppm water hardness. To prepare 250 ppm hard water, 20 ml of 25,000 ppm hard water solution was placed in a 2000 ml volumetric flask and filled with deionized water up to the volume line.

Preparation of Synthetic Sebum:

While stirring with a spatula, the following components were melted together at 71 ° C to prepare synthetic sebum.

Bubble height tests were performed with the compositions of Examples 1 and 2 above. 15 g of liquid hand soap was added to 250 ppm hard water and 1 g of synthetic sebum. Hard water was prepared by mixing 40 g of MgCl ₂ · 6H ₂ O and 45 g of CaCl ₂ · 2H ₂ O and diluting it to 250 ppm. This test mixture was then slowly heated to 40.5 ° C. with gentle stirring. This dispersion was then poured into a 60 ml graduated cylinder containing a plastic tube filled with water. This cylinder was then placed in the center of the vertical rotating mechanism and rotated at a constant speed of 30 rpm. The rotational mixing action of the cylinders and the free fall action of the cylinders in the water-filled tube generated bubbles, and the height of these bubbles was measured using a scale on the side of the cylinder. After the end of eight rotations, the Flash Foam Height was measured, and the maximum Foam Height was measured after the completion of an additional 12 rotations (20 rotations in total). At this time, drainage time was also measured. Drainage time is defined as the time measured from the end of 20 revolutions until 100 ml of liquid is leaked outward. Drainage time is a measure of the wetting and stability of the foam.

Foam evaluation test
1 g of sebum
15g of liquid soap
84ppm 250ppm water
Temperature 40.5 ℃ Product code Moment bubble
(ml) Foam up
(ml) Drainage time
(Minutes and seconds) Contains glucam
Glossy Liquid Soap 325 400 5.77 Glucam Free
Glossy Liquid Soap 375 495 4.65

The results of the foam evaluation test indicate that the glucam containing bright liquid soaps had higher instantaneous bubbles and maximum bubbles. Drainage time took less, which indicates a more stable foam.

All numerical ranges described herein are intended to include all combinations and subcombinations within the range and the specific integers included therein.

In addition to those described herein, various modifications of the invention will be apparent to those skilled in the art from the foregoing description. Such modifications are also intended to fall within the scope of the appended claims.

Claims (20)

Acrylate copolymer, 0.05-4% by weight of a combination of two or more alkoxylated methyl glucoside ethers, based on the weight of the composition, and Surfactant selected from the group consisting of anionic surfactants, amphoteric surfactants, and mixtures thereof Cleaning composition containing a. The cleaning composition of claim 1, further comprising a basic neutralizing agent. delete The cleaning composition of claim 1, wherein the anionic surfactant is present at 3 to 25 weight percent based on the weight of the composition. The cleaning composition of claim 1, wherein the amphoteric surfactant is present in an amount of from 0.05 to 15% by weight, based on the weight of the composition. delete 2. The amphoteric surfactant according to claim 1, wherein the amphoteric surfactant is selected from the group consisting of alkyl betaine, alkylamido betaine, alkyl sulfobetaine, alkyl sultine, alkylamido sultine, and mixtures thereof. Cleaning composition. delete The cleaning composition of claim 1, wherein the combination of two or more alkoxylated methyl glucoside ethers is present in an amount of 0.05 to 2 weight percent based on the weight of the composition. delete The cleaning composition of claim 1, wherein the average degree of alkoxylation of the alkoxylated methyl glucoside ether is 8-22. The alkoxylated methyl glucoside ether of claim 1, wherein the alkoxylated methyl glucoside ether is methyl glutes-10, methyl gluceth-20, PPG-10 methyl glucose ether, PPG-20 methyl glucose ether, and mixtures thereof. A cleaning composition, characterized in that it is selected from the group consisting of. The cleaning composition of claim 1, wherein the acrylate copolymer is present in an amount from 0.1 to 12% by weight, based on the weight of the composition. The cleaning composition of claim 2, wherein the basic neutralizing agent is present in an amount of 0.01 to 5% by weight, based on the weight of the composition. The composition of claim 1, wherein the combination of alkoxylated methyl glucoside ethers comprises ethoxylated methyl glucoside and propoxylated methyl glucoside. The cleaning composition of claim 1, wherein the combination of alkoxylated methyl glucoside ethers comprises methyl glucose-10 and PPG-10 methyl glucose ether. (a) anionic surfactants; (b) amphoteric surfactants; (c) acrylate copolymers; (d) 0.05-4% by weight of alkoxylated methyl glucoside ethers, based on the weight of the total composition; (e) basic neutralizing agents; And (f) water Cleaning composition containing a. 18. The cleaning composition of claim 17, wherein the alkoxylated methyl glucoside ether comprises ethoxylated methyl glucoside and propoxylated methyl glucoside. (a) 3-25% anionic surfactant; (b) 0.05-15% amphoteric surfactant; (c) 0.1 to 12% of an acrylate copolymer; (d) 0.05-4% alkoxylated methyl glucoside ether; (e) 0.01 to 5% basic neutralizer; And (f) water Cleaning composition containing a. a) mixing the acrylate copolymer and water to form an aqueous phase; b) adding an anionic surfactant on the aqueous solution of step a) to form a mixture; c) adding a basic neutralizing agent to the mixture of step b) to form a neutralized material; d) mixing the amphoteric surfactant with the neutralized material of step c); e) adding alkoxylated methyl glucoside ether in an amount of 0.05 to 4% by weight, based on the weight of the total composition, to the result of step d) to form a cleaning composition. A method for producing a cleaning composition comprising a.